Trivial things that annoy you

Someone who's never so much as studied secondary level science who seems to think they're better qualified than a doctor to tell people how to treat their bodies. Let's face it, we all have our preferred cures and special tricks that we think keep us healthy, but I'm talking about those people that feel it's their duty as a genius to inform everyone of what they should or shouldn't be taking, and whether or not to listen to their doctor.

"Oh that sounds like a cold, you should take a mix of 3 solpadeine, 4 shots of vodka and a thimble full of the kind of moss that grows on that wall outside, should fix you right up. Never mind that Uniflu you're taking, it's a placebo"

"Oh your doctor put you on bedrest because he says you have the flu? Never mind him, he doesn't know his arse from his elbow, if you had the flu, trust me, you'd feel far worse. I've had the flu before and you don't look have as bad as I felt. Eat at least twelve carrots a day, redrink your own urine, and take a shed load of paracetamol, you'll be grand"

"Oh your friend has just found out they have a really serious illness? Let me tell you all the horrible details I know about it. You'll be terrified for your friend and annoyed at me, but at least I'll get to look really smart because let's face it I know everything"

This person is also the same person who then gets a cold and goes on for weeks about how they have/had such a bad dose of the flu.